Complete this question by entering your answers in the tabs below. Required A Required B Required C Calculate Apple Inc.'s working capital, current ratio, and acid-test ratio at September 30, 2017, and September 24, 2016. (Round your ratio answers to 1 decimal place. Enter "Working capital" in million of dollars.) Working capital $ 2017 27,831 $ 1.3 0.4 2016 27,863 1.4 1.28 Current ratio Acid-test ratio 2017 $ 229, 234 114,048 61,344 $ 48,351 2016 $ 215, 639 131,376 60,024 $ 45,687 (Amounts Expressed in Millions) For the Fiscal Years Ended September 30 and September 24, respectively: Net sales Costs of sales Operating income Net income At Year End: Assets Current assets: Cash and cash equivalents Short-term marketable securities Accounts receivable, less allowance of $58 and $53, respectively Inventories Vendor nontrade receivables Other current assets Total current assets Long-term marketable securities Property, plant, and equipment, net Goodwill Acquired intangible assets, net Other assets Total assets Liabilities and Shareholders' Equity Current liabilities: Accounts payable Accrued expenses Deferred revenue Commercial paper Current portion of long-term debt Total current liabilities Deferred revenue-noncurrent Long-term debt Other noncurrent liabilities Total liabilities Shareholders' Equity: Common stock and additional paid-in capital, $0.00001 par value, 12,600,000 shares authorized; 5, 126,201 and 5,336,166 shares issued and outstanding, respectively Retained earnings Accumulated other comprehensive income (loss) Total shareholders' equity $ 20,289 53,892 17,874 4,855 17,799 13,936 128,645 194,714 33, 783 5,717 2,298 10,162 $ 375, 319 $ 20,484 46,671 15, 754 2,132 13, 545 8,283 106,869 170, 430 27,010 5, 414 3, 206 8,757 $ 321,686 $ 49,049 25, 744 7,548 11,977 6,496 100,814 2,836 97,207 40, 415 241, 272 $ 37,294 22,027 8,080 8,105 3,500 79,006 2,930 75,427 36,074 193,437 35, 867 98,330 (150) 134,047 31,251 96,364 634 128, 249